One-step solvothermal synthesis of BiSbTe3/N-doped reduced graphene oxide composite as lithium-ion batteries anode materials

• Published in: Chemical engineering science 2020-11, Vol.225, p.115829, Article 115829
• Main Authors: Zhu, Yaqin, Zhao, Jiachang, Li, Lanjie, Mao, Jianfeng, Xu, Jingli, Jin, Jun
• Format: Article
• Language: English
• Subjects: Anode material; BiSbTe3; Electrochemical performance; Lithium-ion batteries; N-doped rGO
• ISSN: 0009-2509; 1873-4405
• DOI: 10.1016/j.ces.2020.115829

[Display omitted] •BiSbTe3/nitrogen-doped reduced graphene oxide (N-rGO) is first used as anode materials for LIBs;•BiSbTe3/N-rGO was successfully prepared via a simple one-step solvothermal method;•Electrochemical kinetics is characterized to explain the remarkable electrochemical performance of BiSbTe3/N-rGO. BiSbTe3/nitrogen-doped reduced graphene oxide (N-rGO) nanocomposite was synthesized via one-pot. As a new anode material for Li-ion storage, BiSbTe3/N-rGO electrode shows enhanced cyclability with a capacity of 388.7 mAh g−1 after 80 cycles at 100 mA g−1, which is significantly higher than that of BiSbTe3 (133.7 mAh g−1). The prominent electrochemical performance is owing to the nitrogen-doped reduced graphene oxide, which can not only enhance the electrical conductivity of BiSbTe3 nanocomposite, but also stem its agglomeration. Electrochemical kinetic analysis of BiSbTe3/N-rGO indicates that most of the capacity stems from the capacitive contribution, which can improve the rate performance of BiSbTe3/N-rGO electrode. This work forecasts that BiSbTe3/N-rGO has a promising application for LIBs.